Clamp-applying tool



Nov. 27, 1928. 1,692,954

J. E. ROUGHAN CLAMP APPLYING TOOL Filed April 30, 1927 Fig-3- INVENTOR ATTORNEY Patented Nov. 27, 1928.

I v 1592.954 -UNITED s'ra'rss PATIENT .OFFICE.

JOHN E. ROUGHAN, OF LIBERTY, INDIANA, ASSIGNOR TO WALTER BOSSERT, OF

LIBERTY,

INDIANA.

CLAMP-APPLYING moon Application filedApril so,

My invention relates to a clamping tool designed primarily for clamping a fastening element or clip over a plurality of bars or other reinforcing membersdesigned partic ularly for use in the construction of concrete roads, but whichmay be used in general constructions for securing such reinforcing members to ether. The clip partly formed is adapte-d to be applied to the bars by hand and is then clamped in place by my device, all

as will be hereinafter moreparticularlyidescribed and claimed. i

Referring to the drawings, whichare made a part hereof and on which similar reference characters indicate similar parts:

Fig. 1 is an edge elevation partly in section of a device illustrating my invention,

Fig. 2 a side elevation of the lower portion of my 'devicelooking from the left of 2 Fig. 1,

Fig. 3 a and V Fig. 4 a section on'the line 4:& of Fig. 3.

In the drawings'reference character 10 indicates an arm or handle provided with a hand grip 11 extending laterally from its upper end. Said arm or handle terminates in an elongated or oval-shaped portion havsection on the line 3- 3fof Fig. 1,

ing a slot 12 in its lower extremity and adapted to accommodate two or more bars 13 about which a clip 1a? is adapted to be applied. Another arm or handle 15cooperates with the arm or handle 10 and said arm or handle is also supplied with a hand grip 11. similar to the hand grip 11. The lower end of the arm 15 is substantially circular in shape and is provided with a pair of shoulders 18 and 19 at the extremities of the circular portion for the purpose later to be described. The arms 10 and 15 are connected by means of abolt orpivot16having a nut 17 threaded on its outer end. f

Between the arms 10 and 15 at the sides of the slot 12, are mounted, on pivot bolts 20 and 21,rockers or clamping jaws 22jand 23, the former of whichis provided with a bend ing tongue or lug 2 1 atjits lower end for engaging the lower portionof the clip. 14:, as shown in Fig. 2, forturning the lowerj'iortion of the -clip upwardly'around the bars 13, said rocker also having a longer upwardly extending cam portion 25 adapted to be en-v gaged by an inwardly extending pin or lug 26 carried by the arm 15 when the latter is swung to the left, as shown in Fig. 3. Such 1927. Serial No. 187,934.

swinging or rotating of the arm 15 being ,tion' 27 adapted to be engaged by an inwardly projecting pin or lug 28 carried by the circular portion of the arm "15. on the opposite side of the bolt or pivot 16 from the pin or lug 23, such pin or lug being a'daptedto engage in its upward movement the'cam portion 27 of the clamping jaw23 substantially at the moment the clamping jaw 22 has reached its limit of movement to cause the clamping jaw 23 to engage the extremity of the clip 14 and press it-into final position.

Springs 36 and 37' are mounted on a block 38 fixed on the inner face of the armor handle 10, the lower end of such springs engaging the upwardly extending cam portions 25 and 27 of the clamping jaws 22 and 23 for nornally holding them in retracted position. I

On the-remote side of the arm 15' and clamping aws 22- and 23 from the arm 10 is mounted a plate 29 having a slot 30 in its lower extremity corresponding to the slot '12 and mounted in opposed relation thereto. The lower extremity of the plate 29 is of substantially the same outline as the lowerextremity of the arm 10, however, said plate'is provided with an arcuate upper surface 31 having a heel or abutment 32 at one extremity of thesame anda similar slightly higher Heel or abutment 33 at the other extremity, said arcuate portion forming a socket in which operates the circular lower end of the arm 15 and the abutment is engaged by the shoulder 19 as shown inFig. 2, to limit the movement of the handle 15 in a right hand [direction and the abutment 32 being adapted to be engaged by the shoulder 18 when the handle 15 is moved to the left, as shown in "Fig. 3.

.extremity of thearm 10 is such as to properly retain the cl1p 14L between them in a position to be engaged'by the clanipingjaws 22 and 23. In order to limit the upward movement of the clip 14 or to prevent its riding upwardly It will be obvious to those skilled in the art that various changes may be made in my device, without departing lrom the spirit of my invention, and I, therefore, do not limit myself to what is shown in the, drawings and described in the specification, but only as set forth in the appended claims. I

Having thus fully described my invention, What I claim as new and desire to secure by Letters Patent is'z' 1. A clamp-applying tool comprising a handle having a clai'np-receivin depression in its extremity, a aw pivoted at each side of the depression and having its inner edge provided] with a cam portion, and a member pivoted on said handle between said earn portions and provided with a pair of iaced pins adapted when the member is oscillated to force the cam portions of the jaws apart to cause the aws to perform the clampingopcr- .ation, said cam portions being arranged at different angles so that the inovei'nent of one of the jaws will precede the movement of the opposed jaw whereby the clamping operation will be successively performed, substantially as set forth. r

2. A clamping tool comprising a handle having an elongated extremity with a slot in the lower end of the same, a plate corresponding in shape to the lower extremity of the elongated portion secured in fixed spaced parjallelrelationthereto, a pairoi" jaws pivoted betweenv the plate and the handle on opposite sides of said slot and movable to and iroin each other, said aws having elongated cam portions, and a member pivoted inthe plane of the fixed member and having inwardly pro ecting spaced pins adapted when the member is rotated. to engage and force the L L?! of said aim being located at each side ofsaid clamp-receiving depression, a retainer plate fixed on sald pins, a pivot bolt connecting said retainer plate and handle, a second handle member pivoted on said pivot bolt and having a pair of spaced inwardly'extending pins, a pair of clamping aws pivoted on said firstmentioned plns,.said clamping jaws having elongated cam portions which are adapted to be engaged by the inwardly extending pins on the second handle member for performing clamping operation, substantially as set forth.

4. A clamping tool comprising a handle having an elongated portion with aflclainpreceiving depression in its extremity, a second handle pivoted in spaced relation to the first handle and having shoulders ateach side of the same, a plate fixed to'said elongated portion in the plane of the second handle and having portions for engaging said shoulders for hunting the movement of the said second handle, clamping jaws pivoted between said first-mentioned handle and's'aid plate at the sides of the clamp-receiving depression, and spaced projections carried by the second handle engageable with the rearportions of said clamping aws for causing them to perform the clamping operation, substantially as et forth.

A clamp-applying tool comprisipg' a pair of handles pivoted together, one or said handles having a elamp receiving recess, the

other of said handles having a pair of opposed projections located on opposite sides of. the pivot, a clamping jaw pivoted-on each side of said recessand having a 'rearwardly extendlng portion, sard rearwardly j:

extendingportion being formed at different angles so that as the pins move in engagement therewith one of the jaws will be operated ahead of the other jaw in performing the clamping operation, substantially as forth. I

6. A clamp-applying tool comprising a handle, a clamp-receiving recess, a plate cor responding in shape to the lower extremity of the handle secured in fixed spaced parallel relation thereto, a pair of jaws pivoted between the plate andthe handle on opposite sides ofthe recess and having rearwardly extending portions, a second handle pivoted to the first handle and having;projections located on opposite sides 01 the pivot, said rearwardly extending portions being formed at diiierent angles so that as the pins move 1n on 'ageinent therewith one of the jaws will be operated ahead of the other jaw in performing clamping operations, and means for "liiniting the relative movemento-f the handles, substantially as set forth. I 5

In witness whereof, I have'hereunto set my hand "at, Indianapolis, Indiana, this 26th day of Aprih'A. D. nineteen hundred and twenty-seven.

JoH 'E. Ro ana M 

